Is OP_RETURN combined with a hash, appropriate for proof of existence of an asset?

Is OP_RETURN combined with a hash, appropriate for proof of existence of an asset?

I want to store a hash (of a tweet) in a way that is :

  • Censorship proof
  • Public
  • Unchangeable
  • Persistent
  • Non centralized
  • Less expensive as possible, obviously free if possible

Technology offered by the blockchain seems to fit my needs.

Since I don't want to run my own blockchain because I didn't find a way to do it for free (or does it makes sense to run my own blockchain on my own server ?). After reading on the subject, I came up using an existing coin (Bitcoin ?) and as you may guess to the OP_RETURN field in a transaction. But storing my hash in that field is really appropriate ?

Can't I use other coins for that, or create my own coin ?

Since I will store lots (3k/day) of tweets, will it not be expensive to do so ?

https://ift.tt/2ELY0cs

Comments

Post a Comment

Popular posts from this blog

Bitcoin Core errors with database block

Bitcoin Core errors with database block I've had the follow issue: on one machine I've launced Bitcoin Core v0.16.0 and Litecoin Core v0.16.0. Each application work in separate datadir also each application have setted callback call for event walletnotify . For now I use both application with testnets. Recently, there have been frequent cases when these applications stop sending transactions, when restarting, an error occurs: "Corrupted block database detected. Do you whant to rebuild the block database now ?". It happens on both apps Bitcoin Core and Litecoin Core, after rebuild applications continue to work, but after a while it happens again Please help me, what I doing wrong? Thank you for any advice https://ift.tt/2z6j9rL
Read more

sendrawtransaction and txn-mempool-conflict

sendrawtransaction and txn-mempool-conflict When i sendrawtransaction to bitcoind, i get error (exceptions) 18: txn-mempool-conflict (use Bitcoin JSON-RPC denpamusic/php-bitcoinrpc ) But the transaction is sent to the network and is subsequently confirmed. Example one decoded transaction : https://jsfiddle.net/rn58a4j6/ then i send this transaction: 94ec12fc463230b4285a29b047608627c05572a4c6eabe6688a201ce49ae72f7 https://ift.tt/2MY2KP0
Read more